19results about How to "Good recombination" patented technology

The invention discloses an external preparation of a microsphere-loaded medicine for treating chloasma and a preparation method of the external preparation. The preparation method comprises the following steps: preparing polyvinyl alcohol acrylate microspheres, loading a tranexamic acid medicine and adding a matrix to prepare the external preparation of the microsphere-loaded medicine. By means of oleophylic and hydrophilic segments on the polyvinyl alcohol acrylate microspheres, fusion with skin lipid components is increased, permeability of the medicine is improved, meanwhile, due to the large specific surface area of the microspheres, the medicine can be more evenly loaded on the microspheres, and due to the hydrophilicity of the microspheres, moisture can be kept for a longer time; and the problem of crystallization of tranexamic acid caused by moisture volatilization is well solved. The ointment or gel external preparation prepared by the invention is relatively good in character and stability, good in in-vitro permeation and in-vitro release performance and remarkable in treatment effect on chloasma of mice.

The application relates to a composite type corrosion and scale inhibition water treatment agent, which is obtained by in-situ copolymerization of phosphono carboxylic acid copolymer after modification of nitrogen-doped carbon quantum dots on the surface of attapulgite as a carrier. The application has the beneficial effects that: the attapulgite is used as the carrier, can be used as a grafting bridge to load the carbon quantum dots on the surface and in-situ generate the phosphono carboxylic acid copolymer, and has a synergistic effect; the nitrogen-doped carbon quantum dots have rich amino, carboxyl and hydroxyl functional groups on the surface, make it difficult for calcium carbonate microcrystals to gather or interfere with the normal growth of the crystals to inhibit scale crystal generation, have high stability, are coated with zinc ions, improve the antibacterial property of the material, are modified on the surface of the attapulgite, have excellent adsorption performance, and can effectively remove organic matters, heavy metals and the like in water; the phosphono carboxylic acid copolymer is in-situ generated on the surface of the attapulgite, has a good compounding effect, has a good effect on corrosion inhibition, and has good corrosion inhibition performance.

The present invention discloses a preparation of anionic nonionic sulfonated cardanol-based polyethylene glycol and its application in aqueous polyurethane emulsion, and belongs to the technical field of polymer materials. The present invention first uses cashew shell extract cardanol as a raw material to prepare a sulfonated cardanol-based polyether polyol with a sulfonic acid anion and a polyethylene glycol nonionic hydrophilic group; the hydroxyl group on the sulfonated cardanol-based polyethylene glycol is reacted with other macromolecular polyols and polyisocyanates, and an anionic nonionic cardanol-based aqueous polyurethane dispersion is prepared by an internal emulsification method. The present invention uses natural cashew shell extract cardanol to replace the petroleum-based products used in the traditional polyurethane industry to synthesize polyether polyols with anionic and nonionic hydrophilic groups for the preparation of aqueous polyurethanes, which is green and environmentally friendly, simple in process, and good in emulsification effect. No small molecule hydrophilic chain extender is required to be added to obtain a stable anionic nonionic aqueous polyurethane emulsion, and has good tensile strength and water resistance, providing a greener solution for the coating industry.

The invention relates to a preparation method of a diformaldehyde gemini surfactant. Mannich reaction is adopted, a long-chain fatty amine component, glyoxal and sodium hydrogen sulfite are used as reaction raw materials, a single variable method is used for controlling reaction conditions, and the optimal conditions of the reaction are explored as follows: the reaction temperature is 60 DEG C, the reaction time is 5 h, and the molar ratio of glyoxal to sodium hydrogen sulfite is 1: 2.3. Then, all products are dissolved with trichloromethane, ethyl acetate is added into the solution to separate out the products, the products are treated through a secondary crystallization method, the product calculation yield is obtained, and the content of 1, 2-bis (dodecyl amino) ethane-1, 2-sodium disulfonate, 1, 2-bis (tetradecyl amino) ethane-1, 2-sodium disulfonate, 1, 2-bis (hexadecyl amino) ethane-1, 2-sodium disulfonate, 1, 2-bis (hexadecyl amino) ethane-1, 2-sodium disulfonate and 1, 2-bis (hexadecyl amino) ethane-1, 2-sodium disulfonate is measured. The synthetic yields of the 1, 2-sodium disulfonate are 65.8%, 67.5% and 76.8% respectively. And characterization is carried out through a nuclear magnetic resonance spectrometer and an infrared spectrometer.

The utility model is suitable for candy compound technical field provides a kind of phospholipid phosphorus shrimp oil tabletting candy's compound device, including compound box, fixedly installed with conveying frame in compound box, and the feeding hole for being used to intercommunicate compound box is opened in conveying frame;Driving assembly is used to carry out stirring compound to candy, and driving assembly includes: power shaft, with the rotation cooperation of compound box, the setting of power shaft, second transmission mechanism, transmission shaft, blanking tube, damping shock absorber and screening box, to realize the screening of various compound raw materials of tabletting candy, and the effect of its internal impurity filtration is good;Again through the setting of power shaft, conveying blade, first transmission mechanism, stirring shaft, stirring rod and push plate, to realize the driving of through same power source, can raw material screening simultaneously, also stir compound to raw material after screening, still can the raw material in the bottom of compound box is sent upwards, make its compound effect better.

The invention discloses a firming and anti-wrinkle composition as well as a preparation method and application thereof, and belongs to the technical field of cosmetics. The firming and anti-wrinkle composition provided by the invention is prepared from the following components in parts by mass: 0.0001 to 0.005 part of platinum powder, 0.0001 to 18 parts of palmitoyl pentapeptide-4, 0.0001 to 10 parts of carnosine, 0.0001 to 1 part of a brassica juncea extract and 0.0001 to 3 parts of a guava leaf extract. According to the firming and anti-wrinkle composition provided by the invention, the components in a specific mass part range are selected, and the components have good interaction, so that the firming and anti-wrinkle composition can be used for effectively firming skin, increasing skin elasticity and reducing skin wrinkles when being applied to cosmetics, and also has an excellent moisturizing effect and an excellent skin color brightening effect. Meanwhile, the preparation method of the firming and anti-wrinkle composition provided by the invention is simple to operate, wide in raw material source and beneficial to actual production.

The utility model discloses a sintering sagger for lithium iron phosphate, which comprises a sagger main body, the sagger main body comprises a bottom plate and a side plate fixedly connected with the bottom plate, the bottom plate and the side plate form a containing cavity for containing materials, the sintering sagger further comprises a partition plate and a cover plate, the partition plate divides the containing cavity into at least two independent cavities, and the cover plate is arranged in the containing cavity. The top face of the partition plate is lower than the top faces of the side plates, and the cover plate covers the partition plate and is located in the containing cavity. A first limiting structure is arranged on the peripheral wall of the cover plate, and a second limiting structure matched with the first limiting structure is arranged on the inner wall face of the side plate. By arranging the partition plate and the cover plate in the accommodating cavity of the sagger main body, the carbon content distribution of the inner surface layer of the sagger is adjusted, so that lithium iron phosphate in the sagger is more uniformly mixed with carbon in the sintering process, the compounding effect of lithium iron phosphate with different sizes of particles is good, and the situation that the prepared lithium iron phosphate material is different in morphology and pole matching is avoided; the physical property of the lithium iron phosphate is influenced.

The invention relates to the technical field of skin care product raw materials, and particularly discloses a deep moisturizing composition containing adansonia digitata leaf extract as well as a preparation method and application of the deep moisturizing composition. The deep moisturizing composition containing the adansonia digitata leaf extract is prepared by compounding the adansonia digitata leaf extract, a dendrobium officinale extract, a selaginella tamariscina extract and a lotus flower extract. The preparation method of the deep moisturizing composition containing the adansonia digitata leaf extract comprises the following steps: step 1), adding the adansonia digitata leaf extract, the dendrobium officinale extract, the selaginella tamariscina extract and the lotus flower extract into water, and mixing until dissolving to obtain a composite extract solution; 2, the composite extracting solution is concentrated and dried, and the deep moisturizing composition containing the adansonia digitata leaf extract.The deep moisturizing composition containing the adansonia digitata leaf extract.The deep moisturizing composition containing the adansonia digitata leaf extract.The deep moisturizing composition containing the adansonia digitata leaf extract.The deep moisturizing

The invention discloses an acne-removing and moisturizing silver-based mask and a preparation method thereof, and belongs to the technical field of cosmetics. The silver-based mask comprises mask liquid and silver-based mask cloth, wherein the mask liquid is prepared from the following components in percentage by weight: 0.2 to 1.2 percent of plant extract, 1.5 to 2.4 percent of plant yeast, 2 to 5 percent of humectant, 0.2 to 0.6 percent of allantoin, 0.5 to 0.9 percent of hydrolyzed collagen, 0.6 to 1.2 percent of arginine, 0.2 to 0.5 percent of hydroxyethyl cellulose and the balance of water. According to the acne-removing mask, the components cooperate with one another and jointly act on the skin, and the prepared mask product can achieve the acne-removing effect, improve the overall condition of the skin, reduce acne traces, improve the glossiness of the skin and make the skin uniform.

The invention relates to a clay stabilizer composition and a preparation method thereof. The main components of the clay stabilizer composition are a modified cationic polymer stabilizer and an auxiliary clay stabilizer. Since the modified cationic polymer stabilizer is synthesized with a hyperbranched polymer as a matrix, and the auxiliary clay stabilizer contains a benzene ring and a triazole structure, both of which have good thermal stability, the clay stabilizer composition has good high temperature resistance. Since the modified cationic polymer stabilizer is also grafted with a silane segment, it has good water washing resistance. Since the auxiliary clay stabilizer has a small molecular weight, the auxiliary clay stabilizer can enter into pores that the modified cationic polymer stabilizer cannot enter, so that the modified cationic polymer stabilizer and the auxiliary clay stabilizer play a good composite anti-swelling effect.

The present invention proposes an anti-wear bearing oil composition and a preparation method and application thereof, wherein the components include: 96.5-97.5wt% of high viscosity index mineral oil, preferably 97.455-96.855wt%, 0.6-1.4wt% of extreme pressure anti-wear agent, 0.5-1.0wt% of pour point depressant, 1.3-1.5wt% of antioxidant, 0.1-0.15wt% of rust inhibitor and 0.001-0.05wt% of anti-foam agent. Suitable base oil and additives compatible with the base oil are selected, and the types and proportions of the additives are explored to obtain the anti-wear bearing oil composition, which has excellent extreme pressure anti-wear performance, good sludge control performance, low temperature performance and oxidation stability, and is suitable for lubrication of traction motors of railway locomotives of railway bureaus.

The invention relates to the technical field of microorganisms, and discloses propylene glycol eating lactobacillus and application thereof in a combined leavening agent and koumiss, the propylene glycol eating lactobacillus MNJ-2 is preserved in the China General Microbiological Culture Collection Center (CGMCC), the preservation number is CGMCC No.35857, the preservation number is CGMCC No.35857, and the preservation number is CGMCC No.35857. The invention relates to a lactobacillus plantarum strain, which has good acid resistance, cholate resistance and intestinal epithelial cell adhesion capacity, shows the potential of serving as a probiotic and has no obvious antagonism with other strains, and further relates to a leavening agent prepared by combining the strain with lactobacillus plantarum ZKLp l 800, lactobacillus paracasei ZKL200 and saccharomyces cerevisiae ZKM011 in proportion. Compared with traditional koumiss, the koumiss produced by applying the combined leavening agent is more stable in state, richer in fragrance and richer in taste, meanwhile, the traditional sour taste and wine fragrance are reserved, and the koumiss has wide application prospects in the aspect of industrial production.

The present invention relates to a method for fermenting ham using a composite microecological fermentation agent, and belongs to the technical field of fermented food processing. The present invention uses plant lactobacillus, acidophilus lactobacillus, and utilis candida as a composite microecological preparation to prepare bacterial liquid, adds hawthorn juice and microecology to jointly obtain a composite fermentation agent, and ferments and processes ham, which can improve the color and elasticity of meat muscle fibers, and shorten the fermentation and maturation period of ham to the maximum extent, and has good industrial application prospects.

The present application relates to the technical field of positive electrode materials, and specifically discloses a lithium-rich positive electrode material and a preparation method and application thereof. A preparation method of a lithium-rich positive electrode material comprises the following steps: 1) reacting lithium hydroxide with Ni 0.6 Co 0.15 Mn 0.15 (OH) 1.8 The precursors are mixed evenly, sintered and ground to obtain Li[Li 0.2 Ni 0.6 Co 0.15 Mn 0.15 ]O2 positive electrode material; 2) using ALD process to atomically deposit Mo on molybdenum oxide substrate to obtain deposition material; 3) adding intermediate liquid, deposition material and positive electrode material into a stirring kettle, homogenizing under nitrogen protection, replacing with deionized water, washing, and then vacuum drying, and then sintering in a tubular furnace under nitrogen atmosphere, and grinding to obtain. The lithium-rich positive electrode material prepared in this application has the advantages of good rate performance and cycle performance.

The embodiment of the invention discloses a water-based scalding-resistant coating adhesive for textiles and a preparation method of the water-based scalding-resistant coating adhesive. The method comprises the following steps: weighing 70-80 parts by weight of polymerized water-based organic silicon resin, 10-15 parts by weight of a phosphate flame retardant, 3-5 parts by weight of a charring agent, 3-5 parts by weight of closed water-based polyurethane resin and 2-3 parts by weight of a thickening agent, and uniformly mixing to obtain basic glue; and adding 2-4 parts by weight of a cross-linking agent and 1-3 parts by weight of a catalyst into the basic glue, and uniformly mixing to obtain a finished product. According to the water-based scalding-resistant coating adhesive for the textiles, provided by the invention, when the coated textiles, especially chemical fiber light and thin fabrics with poorer high-temperature resistance, are in contact with high-temperature heat sources (such as sparks and cigarette ends), adhesive films are high-temperature-resistant and are not completely decomposed and damaged in a short time, and carbon is quickly formed on the surfaces; the fabric can be prevented from being scalded and perforated in a short time to hurt a human body, and meanwhile, the fabric has good soft hand feeling and is comfortable to wear. The glue solution disclosed by the invention is simple and convenient to apply, is suitable for clothing fabrics of most specifications, is water-based and environment-friendly, and has a wide market prospect.

The invention discloses a plant sunscreen synergistic composition and application thereof, and belongs to the technical field of cosmetics. The plant sunscreen synergistic composition provided by the invention is prepared from the following components in parts by mass: 0.1 to 1 part of rhizoma cimicifugae extract, 0.3 to 1 part of folium cortex eucommiae extract, 1 to 3 parts of rambutan peel extract and 5 to 10 parts of rhizoma cyperi root extract. According to the invention, the components in a proper mass ratio are selected for compounding, so that the obtained composition has a good ultraviolet absorption effect and also has excellent anti-inflammatory and soothing effects. Moreover, when the sunscreen cream is subsequently added into a sunscreen product, a physical sunscreen agent and a chemical sunscreen agent in the sunscreen cream can be effectively stabilized, the sunscreen effects of the physical sunscreen agent and the chemical sunscreen agent can be enhanced, the durability of the sunscreen product can be improved, and the repair of the sunscreen product to the after-sun skin can be enhanced.

The invention discloses a corrosion inhibitor composition which is composed of a compound shown in a formula 1, a compound shown in a formula 2 and water. According to the total mass of the corrosion inhibitor composition as 100%, the content of the compound shown in the formula 1 is 15 wt%-35 wt%, and the content of the compound shown in the formula 2 is 5 wt%-20 wt%. The temperature-resistant corrosion inhibitor composition can obviously reduce the corrosion rate of metal and reduce loss caused by corrosion, can be widely applied to the fields of oilfield water injection, oil extraction, gathering and transportation and the like, protects oil-water well shafts, pipelines and equipment, and effectively relieves the corrosion problem. The corrosion inhibitor composition disclosed by the invention can also be applied to an industrial circulating water system and an oil refining industry.

This invention belongs to the technical field of sealant adhesive materials, specifically relating to a weather-resistant modified silane sealant and its preparation method. The preparation method of the weather-resistant modified silane sealant of this invention includes the following steps: S1, polypropylene glycol is sequentially subjected to alkoxide treatment and allylation treatment to obtain a polyether containing double bonds; the polyether containing double bonds and mercaptopropyltrimethoxysilane are used as raw materials for end-capping modification to obtain a silane-modified polyether material; S2, the silane-modified polyether material, filler, and plasticizer are mixed and vacuum stirred to obtain a mixture; S3, after cooling, a silane coupling agent, vinyltrimethoxysilane, catalyst, ultraviolet absorber, light stabilizer, and antioxidant are added to the mixture and stirred; the mixture is then discharged and sealed to obtain the weather-resistant modified silane sealant. This invention effectively improves the tensile strength of the material while ensuring good weather resistance of the sealant.

The invention relates to a preparation method of a symmetric gemini surfactant. According to the invention, dodecyl tertiary amine, 1, 2-dibromoethane and 1, 4-dibromobutane are used as raw materials, and the cationic surfactants C12-2-C12 and C12-4-C12 are synthesized in one step through a nucleophilic substitution reaction. The two synthesized products are characterized, the surface tension of the products under different concentrations is tested, the CMC value of the products is calculated, and compared with a common surfactant, the CMC value of the products is higher, and better performance is achieved; the surface tension is detected under salt with different temperatures and different concentrations, so that the temperature resistance and the salt resistance are explored. The final experiment and detection results show that the synthesized cationic Gemini surfactant has good performance and has great market potential in the tertiary oil recovery process as an oil displacement agent.